EP0657821A3 - Memory monitoring circuit for detecting unauthorized memory access. - Google Patents

Memory monitoring circuit for detecting unauthorized memory access. Download PDF

Info

Publication number: EP0657821A3
Authority: EP; European Patent Office
Prior art keywords: memory; monitoring circuit; detecting unauthorized; memory access; access
Prior art date: 1993-12-09
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP94119490A

Other languages

German (de)

French (fr)

Other versions

EP0657821A2 (en

EP0657821B1 (en

Inventor

Young W Lee

Sungwon Moh

Arno Muller

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Pitney Bowes Inc

Original Assignee

Pitney Bowes Inc

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1993-12-09

Filing date

1994-12-09

Publication date

1996-04-17

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22591680&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0657821(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1994-12-09 Application filed by Pitney Bowes Inc filed Critical Pitney Bowes Inc

1995-06-14 Publication of EP0657821A2 publication Critical patent/EP0657821A2/en

1996-04-17 Publication of EP0657821A3 publication Critical patent/EP0657821A3/en

2002-03-13 Application granted granted Critical

2002-03-13 Publication of EP0657821B1 publication Critical patent/EP0657821B1/en

2014-12-09 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Classifications

- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
- G06F21/79—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/14—Protection against unauthorised use of memory or access to memory
- G06F12/1416—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights
- G06F12/1425—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights the protection being physical, e.g. cell, word, block
- G06F12/1433—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights the protection being physical, e.g. cell, word, block for a module or a part of a module

Landscapes

Engineering & Computer Science (AREA)
Theoretical Computer Science (AREA)
Computer Security & Cryptography (AREA)
Computer Hardware Design (AREA)
Physics & Mathematics (AREA)
General Engineering & Computer Science (AREA)
General Physics & Mathematics (AREA)
Software Systems (AREA)
Storage Device Security (AREA)

EP94119490A 1993-12-09 1994-12-09 Memory monitoring circuit for detecting unauthorized memory access Expired - Lifetime EP0657821B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US16381193A	1993-12-09	1993-12-09
US163811		1993-12-09

Publications (3)

Publication Number	Publication Date
EP0657821A2 EP0657821A2 (en)	1995-06-14
EP0657821A3 true EP0657821A3 (en)	1996-04-17
EP0657821B1 EP0657821B1 (en)	2002-03-13

Family

ID=22591680

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP94119490A Expired - Lifetime EP0657821B1 (en)	1993-12-09	1994-12-09	Memory monitoring circuit for detecting unauthorized memory access

Country Status (4)

Country	Link
US (1)	US5729716A (en)
EP (1)	EP0657821B1 (en)
CA (1)	CA2137504C (en)
DE (1)	DE69430102T2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6615344B1 (en)	1999-09-03	2003-09-02	Infineon Technologies North America Corp.	System and method for tracking selectively enabling modules used in an integrated processor using a tracking register providing configuration information to an external pin
US7146477B1 (en) *	2003-04-18	2006-12-05	Advanced Micro Devices, Inc.	Mechanism for selectively blocking peripheral device accesses to system memory
US8250295B2 (en)	2004-01-05	2012-08-21	Smart Modular Technologies, Inc.	Multi-rank memory module that emulates a memory module having a different number of ranks
US7916574B1 (en)	2004-03-05	2011-03-29	Netlist, Inc.	Circuit providing load isolation and memory domain translation for memory module
US7289386B2 (en)	2004-03-05	2007-10-30	Netlist, Inc.	Memory module decoder
US8032727B2 (en) *	2004-07-23	2011-10-04	Broadcom Corporation	Method and system for locking OTP memory bits after programming
DE102005014837B4 (en) *	2004-08-02	2007-08-30	Mahltig, Holger	Security module and method for controlling and controlling a data traffic of a personal computer
CN100375060C (en) *	2005-06-20	2008-03-12	中兴通讯股份有限公司	Embedded system and real-time monitoring and processing method thereof
US8154901B1 (en)	2008-04-14	2012-04-10	Netlist, Inc.	Circuit providing load isolation and noise reduction
US8516185B2 (en)	2009-07-16	2013-08-20	Netlist, Inc.	System and method utilizing distributed byte-wise buffers on a memory module
US9128632B2 (en)	2009-07-16	2015-09-08	Netlist, Inc.	Memory module with distributed data buffers and method of operation
WO2012061633A2 (en)	2010-11-03	2012-05-10	Netlist, Inc.	Method and apparatus for optimizing driver load in a memory package
US11144634B2 (en) *	2016-09-28	2021-10-12	Nanolock Security Inc.	Access control for integrated circuit devices

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0194660A2 (en) *	1985-03-12	1986-09-17	Pitney Bowes Inc.	Electronic postage meter having a memory map decoder and an illegal-memory-access warning signal, respectively
EP0223130A2 (en) *	1985-10-31	1987-05-27	Alcatel Satmam	Electronic postage meter circuitry
EP0527010A2 (en) *	1991-08-05	1993-02-10	Ascom Hasler Mailing Systems AG	Protection system for critical memory information
EP0608060A1 (en) *	1993-01-11	1994-07-27	Ascom Autelca Ltd.	Data protection apparatus and method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4424573A (en) *	1981-02-26	1984-01-03	Pitney Bowes Inc.	System for entering a postage meter serial number into a nonvolatile memory from an external channel after assembly of the meter
US4701656A (en) *	1983-06-13	1987-10-20	Intratechnology Associates, Inc.	Electromechanical device with slotted stator
US4710882A (en) *	1985-03-12	1987-12-01	Pitney Bowes Inc.	Electronic postage meter having a nonvolatile memory selection means
US4747057A (en) *	1985-03-12	1988-05-24	Pitney Bowes Inc.	Electronic postage meter having power up and power down protection circuitry
US4998203A (en) *	1985-03-12	1991-03-05	Digiulio Peter C	Postage meter with a non-volatile memory security circuit
US4817004A (en) *	1985-10-16	1989-03-28	Pitney Bowes Inc.	Electronic postage meter operating system
US5179540A (en) *	1985-11-08	1993-01-12	Harris Corporation	Programmable chip enable logic function
US4785469A (en) *	1987-02-12	1988-11-15	Advanced Micro Devices, Inc.	Processor to peripheral interface for asynchronous or synchronous applications
CN1045655A (en) *	1988-11-23	1990-09-26	约翰弗兰克制造公司	The kernel test interface and the method for system's automatic diagnosis

1994
- 1994-12-07 CA CA002137504A patent/CA2137504C/en not_active Expired - Fee Related
- 1994-12-09 DE DE69430102T patent/DE69430102T2/en not_active Expired - Fee Related
- 1994-12-09 EP EP94119490A patent/EP0657821B1/en not_active Expired - Lifetime
1996
- 1996-05-15 US US08/648,454 patent/US5729716A/en not_active Expired - Lifetime

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0194660A2 (en) *	1985-03-12	1986-09-17	Pitney Bowes Inc.	Electronic postage meter having a memory map decoder and an illegal-memory-access warning signal, respectively
EP0223130A2 (en) *	1985-10-31	1987-05-27	Alcatel Satmam	Electronic postage meter circuitry
EP0527010A2 (en) *	1991-08-05	1993-02-10	Ascom Hasler Mailing Systems AG	Protection system for critical memory information
EP0608060A1 (en) *	1993-01-11	1994-07-27	Ascom Autelca Ltd.	Data protection apparatus and method

Also Published As

Publication number	Publication date
CA2137504A1 (en)	1995-06-10
EP0657821A2 (en)	1995-06-14
EP0657821B1 (en)	2002-03-13
US5729716A (en)	1998-03-17
DE69430102D1 (en)	2002-04-18
DE69430102T2 (en)	2002-10-31
CA2137504C (en)	1998-08-25

Legal Events

Date	Code	Title	Description
1995-04-28	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1995-06-14	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): CH DE FR GB LI
1996-03-02	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1996-04-17	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): CH DE FR GB LI
1996-08-14	17P	Request for examination filed	Effective date: 19960620
2000-03-01	17Q	First examination report despatched	Effective date: 20000117
2001-04-17	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
2001-08-28	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
2001-08-28	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
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2002-08-02	ET	Fr: translation filed
2002-12-18	PLBQ	Unpublished change to opponent data	Free format text: ORIGINAL CODE: EPIDOS OPPO
2002-12-27	PLBI	Opposition filed	Free format text: ORIGINAL CODE: 0009260
2003-01-14	PLBF	Reply of patent proprietor to notice(s) of opposition	Free format text: ORIGINAL CODE: EPIDOS OBSO
2003-02-05	26	Opposition filed	Opponent name: FRANCOTYP-POSTALIA AKTIENGESELLSCHAFT & CO. KG Effective date: 20021213
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2004-11-08	PLCK	Communication despatched that opposition was rejected	Free format text: ORIGINAL CODE: EPIDOSNREJ1
2005-02-25	PLBN	Opposition rejected	Free format text: ORIGINAL CODE: 0009273
2005-02-25	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: OPPOSITION REJECTED
2005-04-13	27O	Opposition rejected	Effective date: 20041122
2007-10-15	REG	Reference to a national code	Ref country code: CH Ref legal event code: PFA Owner name: PITNEY BOWES INC. Free format text: PITNEY BOWES INC.#WORLD HEADQUARTERS, ONE ELMCROFT ROAD#STAMFORD, CONNECTICUT 06926-0700 (US) -TRANSFER TO- PITNEY BOWES INC.#WORLD HEADQUARTERS, ONE ELMCROFT ROAD#STAMFORD, CONNECTICUT 06926-0700 (US)
2008-02-29	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: CH Payment date: 20071228 Year of fee payment: 14
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